Evidence map›Paper›PMID 26099810›Full record

ArticleCardiovascular ultrasound2015

Grading diastolic function by echocardiography: hemodynamic validation of existing guidelines.

Andrew D M Grant, Kazuaki Negishi, Tomoko Negishi, Patrick Collier, Samir R Kapadia, James D Thomas, Thomas H Marwick, Brian P Griffin, Zoran B Popović

Open access · goldAbstract readValidation Study
In one paragraph

Article in Cardiovascular ultrasound, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Hypertensive Heart Disease-The Imaging Perspective.Journal of clinical medicine · 2023
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Passive leg-lifting in heart failure patients predicts exercise-induced rise in left ventricular filling pressures.Clinical research in cardiology : official journal of the German Cardiac Society · 2020
    Article
  11. Article
  12. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 4 institutions in 3 countries.

Andrew D M GrantLibin Cardiovascular Institute, University of Calgary, Calgary, Canada. andrew.grant@albertahealthservices.ca.
Kazuaki NegishiMenzies Research Institute, University of Tasmania, Tasmania, Australia. kazuaki.negishi@utas.edu.au.
Tomoko NegishiMenzies Research Institute, University of Tasmania, Tasmania, Australia. tomoko.negishi@utas.edu.au.
Patrick CollierHeart and Vascular Institute, Cleveland Clinic, Cleveland, USA. colliep@ccf.org.
Samir R KapadiaHeart and Vascular Institute, Cleveland Clinic, Cleveland, USA. kapadis@ccf.org.
James D ThomasNorthwestern University Feinberg School of Medicine, Chicago, USA. thomasj@ccf.org.
Thomas H MarwickMenzies Research Institute, University of Tasmania, Tasmania, Australia. tom.marwick@utas.edu.au.
Brian P GriffinHeart and Vascular Institute, Cleveland Clinic, Cleveland, USA. griffib@ccf.org.
Zoran B PopovićHeart and Vascular Institute, Cleveland Clinic, Cleveland, USA. popoviz@ccf.org.
Cleveland Clinic · USUniversity of Tasmania · AULibin Cardiovascular Institute of Alberta · CANorthwestern University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile echocardiographic grading of left ventricular (LV) diastolic dysfunction (DD) is used every day, the relationship between echocardiographic DD grade and hemodynamic abnormalities is uncertain.

methodsWe identified 460 consecutive patients who underwent transthoracic echocardiography within 24 h of elective left heart catheterization and had: normal sinus rhythm, no confounding structural heart disease, no change in medications between catheterization and echo, and complete echocardiographic data. Patients were grouped based on echocardiographic DD grade. Hemodynamic tracings were used to determine time constant of isovolumic pressure decay (Tau), LV end-diastolic pressure (LVEDP) and end-diastolic volume index at a pressure of 20 mmHg (EDVi20).

resultsNormal diastolic function was found in 55 (12.0%) patients, while 132 (28.7%) patients had grade 1, 156 (33.9%) grade 2 and 117 (25.4%) grade 3 DD. The median value for Tau was 46.9 ms for the overall population (interquartile range 38.6-58.1 ms), with a prevalence of a prolonged Tau (>48 ms) of 47.5%. While there was an association between DD grade and Tau (p = 0.003), LV dysfunction (ejection fraction <50%) was more strongly associated with increased Tau (p < 0.001) than was DD grade (p = 0.19). There was also an association between DD grade and LVEDP (p < 0.001), with both LV dysfunction (p = 0.029) and DD grade (p < 0.001) independently associated with LVEDP. Calculated EDVi20 was related to DD grade, but this relationship was driven by findings of paradoxically increased compliance in patients with severe DD.

conclusionsAlthough echocardiographic grading of DD was related to invasive hemodynamics in this population, the relationship was modest.

Indexed as

Practice Guidelines as TopicStroke VolumeAgedEchocardiographyFemaleHeart Function TestsHumansImage Interpretation, Computer-AssistedMaleMiddle AgedReproducibility of ResultsSensitivity and SpecificityVentricular Dysfunction, Left

Identifiers

PMID26099810
PMCPMC4477506
OpenAlexW1842969195

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.